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Google Dialogflow vs Slimchat

Google Dialogflow logo

Google Dialogflow

Live Chat

Google's conversational AI platform

From
Free
Rated
-
Full reviewWebsite
S

Slimchat

Live Chat

Lightweight live chat solution for websites

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Google Dialogflow usage-based pricing expected but specific rates not confirmed; Slimchat the vendor's own homepage as captured by the Internet Archive on 19 August 2018 (via Novosi, LLC) shows SlimChat was still pre-release at that date, offering an email signup for '3 months FREE' with an 'Expected release: summer 2018' notice and a $15 incentive to test a tour version; combined with the live site now serving a mismatched Squarespace certificate, this indicates the product likely never reached a stable commercial release
  • They diverge on capability: Google Dialogflow covers NLU and NLG, Slimchat covers Live chat widget.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Google Dialogflow and Slimchat actually diverge.

Attributes where Google Dialogflow and Slimchat differ
AttributeGoogle DialogflowSlimchat
Pricing modelusage-basedfreemium
PlatformsWeb, Mobile, Messaging apps, Voice assistantsWeb, Mobile responsive
Founded19982016

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Live Chat).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Google Dialogflow

  • NLU and NLG
  • Multi-language support
  • Integration with Google services
  • Google Cloud
  • Slack
  • Facebook
  • Telegram
  • Mobile support

Only in Slimchat

  • Live chat widget
  • Lightweight design
  • Fast loading
  • Visitor information
  • Zapier
  • API
  • Mobile responsive support

Both cover

  • Webhooks
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Google Dialogflow

  • Customer engagement
  • Lead generation
  • Customer support
  • Sales automation

Slimchat

  • Customer engagement
  • Lead generation
  • Customer support
  • Sales automation

Both are used for customer engagement, lead generation, customer support, sales automation, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Google Dialogflow

  • Usage-based pricing expected but specific rates not confirmed
  • Free tier details not documented in available content

Slimchat

  • The vendor's own homepage as captured by the Internet Archive on 19 August 2018 (via Novosi, LLC) shows SlimChat was still pre-release at that date, offering an email signup for '3 months FREE' with an 'Expected release: summer 2018' notice and a $15 incentive to test a tour version; combined with the live site now serving a mismatched Squarespace certificate, this indicates the product likely never reached a stable commercial release

Pricing, plan by plan

Google Dialogflow

Free
  • Free TierFree
    • 100 requests/day
    • Basic NLU
  • Standard$0.005/month
    • Pay per request
    • Advanced features
  • Enterprise$undefined/month
    • Custom SLAs
    • Dedicated support

Slimchat

Free
  • FreeFree
    • Live chat
    • 1 agent
    • Basic features
  • Pro$20/month
    • Multiple agents
    • Advanced options
  • Business$50/month
    • Unlimited features
    • Priority support

Which should you pick?

Choose Google Dialogflow if

  • You need nlu and nlg.
  • You want to start without paying.
  • You work on Web, Mobile, Messaging apps, Voice assistants.
  • You also want multi-language support.
Google Dialogflow review

Choose Slimchat if

  • You need live chat widget.
  • You want to start without paying.
  • You work on Web, Mobile responsive.
  • You also want lightweight design.
Slimchat review

Questions people ask

Is Google Dialogflow or Slimchat better?
Neither clearly leads. Google Dialogflow starts at Free and Slimchat at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Google Dialogflow or Slimchat?
Google Dialogflow starts at Free and Slimchat at Free.
Does Google Dialogflow or Slimchat run on more platforms?
Google Dialogflow runs on Web, Mobile, Messaging apps, Voice assistants. Slimchat runs on Web, Mobile responsive.
Can I use Google Dialogflow for free?
Both have a free tier, so you can try either at no cost before committing.
What is Google Dialogflow best used for?
Google Dialogflow is most often used for customer engagement, lead generation, customer support, sales automation.
What can Google Dialogflow do that Slimchat cannot?
Google Dialogflow covers NLU and NLG, Multi-language support, Integration with Google services, Google Cloud. Slimchat covers Live chat widget, Lightweight design, Fast loading, Visitor information. Both handle Webhooks, Web support.

Answered from the vendors’ own pages

Google Dialogflow: How is Google Dialogflow priced?

Dialogflow uses usage-based pricing through Google Cloud. Costs vary based on the number of requests, interactions, or queries depending on the specific Dialogflow edition (Standard or Enterprise).

Source
Google Dialogflow: Does Google Dialogflow offer a free tier?

Google Cloud typically provides free tier access for Dialogflow, but specific free quota limits depend on the Dialogflow edition and must be verified in the Google Cloud Console.

Source
Google Dialogflow: What factors affect Dialogflow pricing beyond request volume?

Dialogflow pricing depends on request volume, concurrent users, AI model complexity, data processing volume, and additional features or third-party integrations used.

Source
Google Dialogflow: Where can I find exact Dialogflow pricing rates for my use case?

Exact per-query pricing and free tier limits are documented in the Google Cloud Console under Dialogflow billing. Regional pricing variations apply, and enterprise customers can contact Google Cloud sales.

Source
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